Maria is a second-year student of Maronie-no-ki Saka Gakuen, where students are free to do as they like. Maria is very fond of Utsuki, a teacher and veterinarian of the school, while he likes her cat Marianne. Maria wants to know his real intentions, but cute animals get in the way.

i think it's not mature category coz there's no scene more than kissingand for animal lovers maybe it's heaven coz the author draw the animal quite good i remember puku2 when i read ithahaha but there's a human here